I dont really know if it should be Dick, definitely not Roy he's a dick. You gotta remember that Dick had a relationship with Barbara Gordon maybe after reboot they're still in love.
Do you mean in the New 52, because if so than im sorry to say that both Dick and Babs have mentioned that they werent together, THOUGH they both had/have feelings for each other but just never expressed those feelings. I would love for Dick and Babs to get back together, especially since i dont like his new potential love interest, who is the daughter of the man that killed his parents! It remains to be seen if they are in love, but i would like nothing more for that to be the case